CN102435475B - Preparation device of indoor single-cracked rock specimen - Google Patents
Preparation device of indoor single-cracked rock specimen Download PDFInfo
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- CN102435475B CN102435475B CN 201110251080 CN201110251080A CN102435475B CN 102435475 B CN102435475 B CN 102435475B CN 201110251080 CN201110251080 CN 201110251080 CN 201110251080 A CN201110251080 A CN 201110251080A CN 102435475 B CN102435475 B CN 102435475B
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- retaining collar
- honour
- rock core
- threaded spindle
- core retaining
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Abstract
The invention relates to a preparation device of a rock cracked specimen, in particular to a preparation device of a single-cracked rock specimen filled with a binding material with a certain thickness. The preparation device comprises a base, an upper movable seat, a lower rock core fixing lantern ring, an upper rock core fixing lantern ring, a threaded spindle, an adjusting screw cap and a fastening screw cap; the concentricity of an upper rock core and a lower rock core arranged in the upper rock core fixing lantern ring and the lower rock core fixing lantern ring can be ensured through adjusting the position of the spindle relative to a through groove of the base and the position of the upper rock core fixing lantern ring relative to a horizontal through groove; the distance between the upper rock core and the lower rock core is controlled through the adjusting screw cap and the fastening screw cap; and meanwhile, the thickness of a binding layer between the upper rock core and the lower rock core is ensured so that the upper rock core and the lower rock core are coupled and butt-jointed to form a standard single-cracked rock specimen. The preparation device of the single-cracked rock specimen in the invention is easy to manufacture, simple in operation, strong in practicability and capable of being widely used for preparing single-cracked rock specimens.
Description
Technical field
The present invention relates to indoor rock sample preparation facilities, more specifically relate to a kind of indoor simple check crack rock sample preparation facilities, belong to the Geotechnical Engineering technical field.
Background technology
Problems such as cracking, load-bearing capacity reduction, perviousness enhancing and then chance water softening inevitably will appear in rock mass in the on-the-spot digging process of engineering rock mass, and therefore, grouting and reinforcing becomes the important technique measure in rock mass engineering project field in certain range of disturbance.But the rock cranny shear resistance promotes the problem that the assessment of effect is this domain engineering of puzzlement technician always after the slip casting, get at the scene under the unsuccessful situation of core method, if generate fissure-plane at indoors artificial, and by on-the-spot proportioning making slurries, carry out the direct shear test of slip casting fissure-plane, and compare with no slip casting situation, can make assessment well, for engineering design provides basic foundation.But, in the process that simple check crack rock sample is made, indexs such as the depth of parallelism of the concentricity of core, two loading end faces and adhesive layer thickness are difficult to accurately control about the crack, can't satisfy shop experiment to the requirement of rock sample preparation, also accurate simulated field actual conditions, therefore, carrying out of relevant mechanical test and obtaining of design considerations have seriously been restricted.
Summary of the invention
The objective of the invention is to be to provide a kind of simple in structure, easy to use, practical, can make things convenient for simple check crack rock sample preparation facilities in the preparation room.
To achieve these goals, the present invention adopts following technical measures:
A kind of indoor simple check crack rock sample preparation facilities, preparation facilities is by base, the movable seat of honour, bottom core retaining collar, top core retaining collar, threaded spindle, regulate nut, fastening nut constitutes, have the groove that connects upper and lower surface on base one end, the threaded spindle lower end is connected and fixed calotte, groove is passed in the threaded spindle upper end, be fixed on the top of base by fastening nut, threaded spindle has the keyway of perforation along axis direction, the movable seat of honour one end has circular hole, have keyway in the circular hole, key is fixed in the keyway of circular hole, the movable seat of honour is sleeved on the threaded spindle by key, keyway sliding contact on key and the threaded spindle, have the horizontal groove vertical with end wall on the end wall of the other end at the movable seat of honour, the fastening nut that the above and below at the movable seat of honour is respectively equipped with and adjusting nut, the horizontal groove at the core retaining collar insertion activity seat of honour, top, and by bolt, bottom core retaining collar is by being bolted on the base.
Have equally distributed radial screw bore on top core retaining collar and the bottom core retaining collar ring wall.
The internal diameter equal and opposite in direction of top core retaining collar and bottom core retaining collar.
Owing to adopted above technical scheme, this indoor simple check crack rock sample preparation facilities has following advantage:
1 in order to guarantee rock sample top core and bottom core concentricity, two groove designs have been adopted at base and the movable seat of honour, can regulate the position, the left and right sides of threaded spindle groove on base and top core retaining collar at the front and back position at the movable seat of honour, adopt the threaded spindle design that splines, can move along the axial single direction of threaded spindle at the assurance activity seat of honour, prevent that the movable seat of honour from swinging in the process of moving up and down, thereby can keep that the concentricity of top and the bottom core satisfies the standard sample requirement behind the fracture filling binding material, in order to Experiments of Machanics such as shear.
2 in order to guarantee that rock sample loads the depth of parallelism of end face up and down, the retaining collar of top core and bottom core adopts parallel design, bolt tightening sample around top core retaining collar and bottom core retaining collar pass through, the bottom core is after base is fixing, the end face of top core and retaining collar top, top end face can satisfy shop experiment loads faces parallel up and down to rock sample requirement.
3 adopt adjusting nut and fastening nut design, can accurately quantitatively the movable seat of honour be moved either up or down to the distance that experiment needs, ensured the adhesive layer thickness between top core and the bottom core, finished the butt coupling of top core and bottom core, to satisfy the needs of shop experiment.
Indoor simple check of the present invention crack rock sample preparation facilities has solved the difficult problem that present indoor simple check crack rock sample is difficult for making, indoor simple check crack rock sample preparation facilities is rational in infrastructure, simple, be easy to make, simple to operate, practical, can generally be used for the preparation of the indoor simple check of various models crack rock sample.
Description of drawings
Accompanying drawing is the indoor simple check of the present invention crack rock sample preparation facilities structural representation
Embodiment
The present invention is further described below in conjunction with accompanying drawing.
See accompanying drawing, a kind of indoor simple check crack rock sample preparation facilities is made of base 12, the movable seat of honour 4, bottom core retaining collar 6, top core retaining collar 5, threaded spindle 9, adjusting nut 8, first fastening nut 2.Have the groove 11 that connects upper and lower surface on base 12 1 ends, threaded spindle 9 lower ends are connected and fixed calotte, groove 11 is passed in threaded spindle 9 upper ends, be fixed on the top of base 12 by second fastening nut 10, can regulate the side-to-side movement of top core retaining collar 5 by the position of regulating threaded spindle 9 and groove 11.Threaded spindle 9 has the keyway 1 of perforation along axis direction, the movable seat of honour 4 one ends have circular hole, have keyway in the circular hole, key 3 is fixed in the keyway of circular hole, the movable seat of honour 4 is sleeved on the threaded spindle 9 by key 3, keyway 1 sliding contact on key 3 and the threaded spindle 9, because the effect of key 3, when 4 swings of the movable seat of honour can be avoided in the movable seat of honour 4 when threaded spindle 9 moves up and down.Have the horizontal groove 7 vertical with end wall on the end wall of the other end at the movable seat of honour 4, first fastening nut 2 that the above and below at the movable seat of honour 4 is respectively equipped with and adjusting nut 8, can be by regulating 8 pairs of movable seats of honour 4 of nut in threaded spindle 9 location, and translational speed that can the control activity seat of honour 4 relative threaded spindle 9.The horizontal groove 7 at the top core retaining collar 5 insertion activity seats of honour 4, regulate core retaining collar 5 positions at horizontal groove 7, top, after guaranteeing top core and bottom core concentricity, use bolt, bottom core retaining collar 6 is by being bolted on the base 12.Last core retaining collar 5 and bottom core retaining collar 6 internal diameter equal and opposite in directions, top core and bottom core are respectively charged into top core retaining collar 5 and bottom core retaining collar 6, fix by equally distributed radial bolts on the ring wall.
The principle of work of preparation facilities of the present invention:
(1) the bottom core is packed into bottom core retaining collar 6, and with the bolt bottom core around core retaining collar 6 ring walls of bottom.
(2) the top core is placed on the core of bottom, make both fissure-plane alignment, loosening second hold-doun nut 10 and adjusting nut 8, rotate threaded spindle 9 and the decline activity seat of honour 4, the bolt of the loosening movable seat of honour 4 one ends is also regulated the front and back position of top core retaining collar 5, top core retaining collar 5 is enclosed within on the core of top, guarantee that the top core is parallel with the horizontal end face of bottom core and axis vertical and conllinear, after strictness reaches the cylindrical standard of rock sample testing requirements, the bolt of locked first fastening nut 2 and second fastening nut 10 and the movable seat of honour 4 one ends, and with the bolt top core around the ring wall, the location of finishing top core and bottom core.
(3) distance of the measurement activity seat of honour 4 and base 11, loosening first fastening nut 2, but the rising activity seat of honour 4 rotates the adjusting nut 8 that rises to the clamping activity seat of honour 4 to pack height.
(4) at core upper berth, bottom binding material, loosening decline regulated nut 8, the distance of the measurement activity seat of honour 4 and base 11, make the movable seat of honour 4 drop to requirement crack width after, locked first fastening nut 2 is finished the butt coupling process of core up and down.
Claims (3)
1. indoor simple check crack rock sample preparation facilities, it is characterized in that: preparation facilities is by base (12), the movable seat of honour (4), bottom core retaining collar (6), top core retaining collar (5), threaded spindle (9), regulate nut (8), first fastening nut (2) constitutes, have the groove (11) that connects upper and lower surface on base (12) one ends, threaded spindle (9) lower end is connected and fixed calotte, groove (11) is passed in threaded spindle (9) upper end, be fixed on the top of base (12) by second fastening nut (10), threaded spindle (9) has the keyway (1) of perforation along axis direction, the movable seat of honour (4) one ends have circular hole, have keyway in the circular hole, key (3) is fixed in the keyway of circular hole, the movable seat of honour (4) is sleeved on the threaded spindle (9) by key (3), keyway (1) sliding contact on key (3) and the threaded spindle (9), have the horizontal groove (7) vertical with end wall on the end wall of the other end at the movable seat of honour (4), the above and below at the movable seat of honour (4) is respectively equipped with first fastening nut (2) and regulates nut (8), the horizontal groove (7) at top core retaining collar (5) the insertion activity seat of honour (4), and by bolt, bottom core retaining collar (6) is by being bolted on the base (12).
2. a kind of indoor simple check according to claim 1 crack rock sample preparation facilities is characterized in that: have equally distributed radial screw bore on top core retaining collar (5) and bottom core retaining collar (6) ring wall.
3. a kind of indoor simple check according to claim 1 crack rock sample preparation facilities is characterized in that: the internal diameter equal and opposite in direction of top core retaining collar (5) and bottom core retaining collar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110251080 CN102435475B (en) | 2011-08-29 | 2011-08-29 | Preparation device of indoor single-cracked rock specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110251080 CN102435475B (en) | 2011-08-29 | 2011-08-29 | Preparation device of indoor single-cracked rock specimen |
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| Publication Number | Publication Date |
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| CN102435475A CN102435475A (en) | 2012-05-02 |
| CN102435475B true CN102435475B (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110251080 Expired - Fee Related CN102435475B (en) | 2011-08-29 | 2011-08-29 | Preparation device of indoor single-cracked rock specimen |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033413B (en) * | 2012-12-12 | 2014-06-11 | 河海大学 | Method for preparing crack system test piece for layered crack limestone test |
| CN103852378A (en) * | 2014-01-17 | 2014-06-11 | 中国石油大学(北京) | Method for measuring mechanical properties of rocks through binding non-standard-sized rock cores into standard-sized rock cores |
| CN104895562B (en) * | 2015-05-16 | 2017-02-22 | 东北石油大学 | Production device and method for simulating horizontal well shaft in transparent core |
| CN105865872B (en) * | 2016-04-29 | 2018-08-24 | 河南理工大学 | It prepares and the axial experimental provision and method at different angle crack of Standard rock sample |
| CN105758693B (en) * | 2016-04-29 | 2018-07-17 | 河南理工大学 | A kind of experimental provision and method making crack and center hole on disk rock sample |
| CN108037008A (en) * | 2018-01-25 | 2018-05-15 | 吉林大学 | A kind of new equipment for the spacing adjusting of Rock Joint Plane charges shear test block |
| CN108519264B (en) * | 2018-04-09 | 2020-10-02 | 中国科学院武汉岩土力学研究所 | Preparation method of fracture sample |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121744A (en) * | 1993-04-23 | 1996-05-01 | 特罗克斯勒电子实验有限公司 | Method and apparatus for compacting material samples |
| CN1425906A (en) * | 2001-12-19 | 2003-06-25 | 中国科学院武汉岩土力学研究所 | Seepage test device for rock crack |
| CN2600810Y (en) * | 2003-02-21 | 2004-01-21 | 中国科学院武汉岩土力学研究所 | True triaxil stress rock fissure seepage test deformation investigating device |
| CN2935121Y (en) * | 2006-04-27 | 2007-08-15 | 中国科学院武汉岩土力学研究所 | Geotechnical triaxial test sample-cutting device |
| CN202256001U (en) * | 2011-08-29 | 2012-05-30 | 中国科学院武汉岩土力学研究所 | Indoor single-fracture rock sample preparation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4677588B2 (en) * | 2005-12-08 | 2011-04-27 | 学校法人日本大学 | Pre-crack introduction method and apparatus |
-
2011
- 2011-08-29 CN CN 201110251080 patent/CN102435475B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121744A (en) * | 1993-04-23 | 1996-05-01 | 特罗克斯勒电子实验有限公司 | Method and apparatus for compacting material samples |
| CN1425906A (en) * | 2001-12-19 | 2003-06-25 | 中国科学院武汉岩土力学研究所 | Seepage test device for rock crack |
| CN2600810Y (en) * | 2003-02-21 | 2004-01-21 | 中国科学院武汉岩土力学研究所 | True triaxil stress rock fissure seepage test deformation investigating device |
| CN2935121Y (en) * | 2006-04-27 | 2007-08-15 | 中国科学院武汉岩土力学研究所 | Geotechnical triaxial test sample-cutting device |
| CN202256001U (en) * | 2011-08-29 | 2012-05-30 | 中国科学院武汉岩土力学研究所 | Indoor single-fracture rock sample preparation device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-155665A 2007.06.21 |
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| CN102435475A (en) | 2012-05-02 |
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